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Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean)

by: Gnisci, Valentina; Cognetti de Martiis, Selvaggia; Belmonte, Alessandro; Micheli, Carla; Piermattei, Viviana; Bonamano, Simone; Marcelli, Marco

Publication date: 2020-1-9
Usage: Attribution 4.0 International
Topics: AMOVA, Functional descriptors, Genetic variation, RAPD
Publisher: Pensoft Publishers
Collection: biodiversity
Contributor: Pensoft Publishers
Language: English
Rights: https://biodiversitylibrary.org/permissions
Rights-holder: Copyright held by individual article author(s).
Volume: 9
Item Size: 19.5M

Abstract: The ecological structure of Posidonia oceanica (L.) Delile meadows was evaluated on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean sea). This is an infra-littoral zone with a wide range of anthropogenic activities and high geo-morphological variability, which reflects heterogeneity in shoot density, leaf morphology and biomass in fragmented patches. Genetic variability in populations corresponds to the formation of 3 sub-clusters, in the diverse impacted zones (north, centre and south), being correlated to the geographical distance between sites. AMOVA estimated a high genetic variation showing 43.05% individual differences within populations with a marked differentiation among the populations (56.9%) indicated by Fst value (0.57). These results revealed the role of the genetic structure of seagrasses for determining selectivity of fragmented habitat, in response to natural drivers. They showed that site-specific self-recruitment is related to biodiversity capacity and to the geo-morphological characteristic of the coast.
Addeddate: 2025-05-08 13:05:13
Bhl_virtual_titleid: 210918
Bhl_virtual_volume: v.9 (2020)
Call number: 10_3897_italianbotanist_9_46426
Call-number: 10_3897_italianbotanist_9_46426
Foldoutcount: 0
Genre: article
Identifier: assessmentecolo9gnis
Identifier-ark: ark:/13960/s2qc1g1sbns
Identifier-bib: 10_3897_italianbotanist_9_46426
Identifier-doi: 10.3897/italianbotanist.9.46426
Ocr: tesseract 5.3.0-6-g76ae
Ocr_detected_lang: en
Ocr_detected_lang_conf: 1.0000
Ocr_detected_script: Latin
Ocr_detected_script_conf: 0.9436
Ocr_module_version: 0.0.21
Ocr_parameters: -l eng
Page_number_confidence: 81
Page_number_module_version: 1.0.5
Page_range: 1-19
Pages: 19
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Possible copyright status: In copyright. Digitized with the permission of the rights holder.
Ppi: 300
Source: Italian Botanist 9
Year: 2020